(from Latin, alea: “dice game”) Any 20th-century music, particularly that of the 1950s and '60s, the composition or performance of which incorporates elements of chance. In aleatory music aspects such as the ordering of a piece's sections, its rhythms, and even its pitches are decided at the moment of performance. When not purely improvising, players follow lists of arbitrary rules or interpreted “graphic” notation that merely suggest the sounds. Charles Ives and Henry Cowell had used such techniques, but John Cage became the principal figure in aleatory; other aleatory composers include Earle Brown (1926–2002), Morton Feldman (1926–87), and Pierre Boulez.
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Luke Rhinehart's novel The Dice Man tells the story of a psychiatrist named Luke Rhinehart who, feeling bored and unfulfilled in life, starts making decisions about what to do based on a roll of a die.
Charles Hartman discusses several methods of automatic generation of poetry in his book The Virtual Muse.
An Aleatory Experience Using the Spontaneous Playing with Words That Led to a Chance Encounter with Self and with Writing Poetry as a Valid Form of Inquiry
Sep 01, 2011; Abstract This paper explores how writing poetiy came to make a significant contribution to an exploration of writing as a form of...